The product is a rare and highly sought after 2026 Bowman Paper Black/10 trading card featuring Marcelo Mayer of the Boston Red Sox. Manufactured by Bowman, this baseball trading card is made of high-quality paper and is part of the limited edition 2026 Bowman set. With only 10 cards produced in this specific Black parallel variety, collectors will appreciate the uniqueness and exclusivity of this valuable addition to their sports memorabilia collection.